It has been suggested in the hi-fi press and other sources that an amplifier benefits from a burn-in period ranging from some 20 to 100 hours. This may be true for conventional analogue amplifiers, but we have found that digital amplifiers like the SA400 do not require a burn-in over and above that provided by the 30-hour soak test done prior to the final test at the factory.

Again, digital amplifiers are relatively new; we would appreciate your own comments and views.